Japanese Occupation of AsiaMilitary MailNorth BorneoOka (Borneo Expeditionary Force)Unit 3975 (Hamamura Company): 1942 (July) blank card to Okayama bearing military post handstamp in red, large censor handstamp in blue with Yoshida censor seal and with a fine strike of the arrival c.d.s. (7.9). A fine and desirable cover